Home / 851,074.80-1,276,525.80-290,101.20

Finding the Fourth Proportional to 851,074.80, 1,276,525.80 and 290,101.20

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Solution

The fourth proportional to 851,074.80, 1,276,525.80 and 290,101.20 is: 435,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,074.80 : 1,276,525.80 = 290,101.20 : x
  2. Step 2: Convert to fraction form
    851,074.80/1,276,525.80 = 290,101.20/x
  3. Step 3: Cross multiply
    851,074.80x = 1,276,525.80 × 290,101.20
  4. Step 4: Simplify right side
    851,074.80x = 370,321,666,410.96
  5. Step 5: Solve for x
    x = 370,321,666,410.96/851,074.80
  6. Step 6: Final answer
    x = 435,122.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.